We are planning a trip to southern Utah April 15-27 (Moab, Capitol Reef, Bryce, Page, Monument Valley, back to Moab). Do I need to worry about snow at higher elevations? What about hiking in these areas -- is it too early in the season? We visited this area in late June before and are trying to avoid the heat (dry or otherwise!) but I don't want to run into a problem with being too early either.